Electric switch.



' 1 PATENTED MAR. 12, 1907. b H. SAWYER. ELECTRIC SWITCH,

APPLIOATION FILED JULY 11, 1904.

, shown, to which,

UNITED STATES ATEXT OFFICE.

ELECTRIC SWITCH.

Specification of Letters Patent Patented March 12, 1&0'7.

Application filed July 1 1, 190% fierial No. 215.985.

To all whom, it may concern:

Be it known that I, HARRY SAWYER, a citizen of the United States, residing at Muskegon, in the county of Muskegon and State of Michigan, have. invented a new and useful Improvement in Electric Switches, of which the following is a specification.

This invention relates to electric switches.

The object of the invention is to provide an electric switch which is economical in manufacture, simple, and substantial in construction.

The invention consists, substantially, in the construction, combination, location, and arrangement of parts, all as will .be more fully hereinafter set forth], as shown in the accompanying drawing, and finally pointer out in the appended claims. Referring to the accompanying drawing, and to the various views and reference-signs appearing thereon, Figure 1 is a view in perspective of an electric switch embodying the principles of my invention. Fig. 2 is a view in section on the line 2 2 of Fig. 1 looking in the direction of the arrows. I

In the accompanying drawing referencesign A arms B, forming journal -bearings for the hinge or pivot of a bell-crank lever, the arm C thereof carrying the contacts, as will hereinafter be more fully described, and the arm D being formed into a socket-piece, in which is received a handle E, by which the lever may be rocked. The arm 0 is preferably, though not necessarily, made of malleable iron and is provided with bosses F, suit-ably bored transversely to receive therethrough insulating-pins G, of hard wood or other suitable insulating .material, and which pins may be clamped in the bore oi-bosses F in any convenient inannerfas, for instance, by split- I ting said bosses to form the same into clampjaws-thc screws I'l serving to clamp said jaws upon the insulating-pins GQ At each end oi the pins G are adjustably supported the conductor parts M of the switch. These conductor parts may be adj ustably supported upon the insulating-pins in many dillerent ways, and any convenient means may be employed to clamp the conductor parts in adjusted position. In the particular form however, my invention is be limited or restricted, I emphiy not to castings or members J, formed with bosses designates a bracket having upright at the ends thereof, similar to the bosses F of casting C and similarly bored to receive the ends of the insulating-pins G. The bosses K in order to afford means of clamping the same to the ends of the insulatorpins'G, may be suitably split and screws L employed to serve as clamp-screws for clam-ping said bosses, and hence also the castings,

part of the switch is in the form of hard rolled copper plates M and are rivet-ed, bolted, or otherwise secured upon the sides of the wise between the contact parts N of circuitterminals. Where the insulating-pinsG are of wood, I prefer to employ hard wood andto treat the same with a non-absorbent insulating preparation; The movable member of the switch, constructed as above described, may be rocked or swung about the journalbearings of the hinge or pivot thereof in standards B by suitably manipulating the handle E. From this description it will be seen that the conductor parts of the switch may be readily adjusted along the insulating supporting-rods G and clamped in adjusted position. This is an advantageous feature, for thereby the conductor blades or parts-M the necessity of accurate work in constructing said blades and contacts. Moreover, a conductorpart or blade may be readily removed and renewed when necessary/or desired and, the new part brought readily into proper relation with respect to thy" contacts by merely loosening the cl amp-screws l1 and shifting thelblade or conductor/ part to the desired position and then clamping up The contact or conductor members M of proper-and suitable relation to eil'ect circuit connection with the circuit-terminal contacts N and in such relation as to 'make an eil'ective circuit connection. It will also be seen that ducting parts of the switch. If desired, and in order to cushion or limit the rocking or swinging movement of the movable part of the switch, I may provide such part with stop or limit lugs P, arranged to come in con tact with similar stop or limit lugs Q, l formed on the bracket A.

upon theinsulatingpins G. The conductor depending portions of the castings or members J and in pos1t1on to be recelved edgemay be brought intoproper position and relation with respect to the contacts N without/ again.

the switch are adjustable to and held'in.

ellicient insulation ismaintainedi-of the conabove construction may be used in any sitnation or relation where switches are de- 3 sired. l have shown the apparatus mounted upon a base slab or slate it: but,

H aving now set forth the object and nature of my 'invention and a construction embodying the principles thereof, what I claim as new and useful and of my own invention,

' It is obvious that a switch embodying the and desire to secure by Letters Patent, is*

I. An electric switch including a pivoted lever, insulator-pins carried by said lever, members supported by said insulator-pins, and conductor-sections carried by said memhers.

2. in an electric switch, a pivoted lever having bosses, insulator-pins carried by said bosses, members supported upon the ends of said pins, and conductor-pieces secured to said mmnbcrs.

.3. In an electric switch, apivoted lever insulator-pins clamped to said lever, members having clamp devices at the ends thereof to receive the ends of said insulator-pins and conducting parts hers.

4. .111 an electric switch, having clam devices, ceived and held by hers having a transversely-bored split boss at each end thereof to receive the ends of said insulating-pins, clamp-screws for clamping said split bosses upon said pins, and conductor members carried by thelirst members V In an electric switch,apivotally-mounted lever, an insulator-pin rigidly clamped to said lever, a member rigidly clamped upon the end of said pin, and a conductor member connected to the first said member.

6. In an electric switch, a pivotally-mounted lever, an insulating-pin rigidly clamped inl termcdiato its endsv to said lever, a member i l l l l a warned by said mema pivoted lever insulator-pins resaid clamp devices, meml l i l l said i l l l I i rigidly clamped upon each end of said pin, and a conductor member carried by each of the first said members.

7. In an electric switch, a bracket having i standards, a lever pivotally mounted in said i standardsand having, a handleconnection, ii'isulatingpins clamped to said lever, members clamped upon the ends of said pins, and conductor members carried by the first said members.

i i i i R. in an electric switch, 1'

a bracket having said members, and

cured in said clamp,

for rigidly securing said standards, a lever pivotally mounted in said standards, insulator-pins clamped upon said lever, members clamped upon said insulatorpins, conductor memberscarrled by the first the rocking or swinging movement of said lever.

9. An electric switch including a pivotallymounted bell-crank lever, insulator-pins carried by one arm of said lever, and conductorsections carried by said insulator-pins, the other arm of said lever forming means of attachment of an operating-handle.

10. An electric switch, otally-n'lounted bell-crank lever, an insulating-pin rigidly carried by one arm of said lever, anda conductor portion adjustably mounted u said lever orming means of attachment of an operating-handle. v

11. An electric switch including a pivotally-mounted lever, a rigid insulator-pin extending transversely across and adjustably clamped to said lever, and a conductor por tion carried by said pin.

12. An electric switch including a otally-mounted lever, adjustably tor-section adjustably mounted onsaid in, and means for rigidly clamping said con 'uctor-section to said pin in adjusted position.

piva rigid insulator-pin carrying a clamp, a rigid lnsulatof-pin adjustably serigidly carried by said pin. I 14. An electric switch including a pivoted lever, spaced rigid insulator-pins carried by said lever, a conductor sect on and means section to the ins.

15. In an electric switch, a pivoter lever,

, transverse rigid insulator-pins adjustably secured to the leverand spaced from each other, a conductor related to the member for adjustably and rigidly securing said member to the pins,

In witness whereof I have hereunto set my hand, this 2d day of July, 1904, in the presence of the subscribing witnesses.

. HARRY SAWYERQ Witnesses:

OTTo ALBERT,

J. GE'MERY, Jr.

limit-stops for limiting,

including a pivmounted on said lever, a conducan electric switch, the combination of a pivotally-mounted lever member and means operatively' on said pin, the other arm of and a conductor portion 

